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| author | Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com> | 2018-11-05 02:07:56 +0200 |
|---|---|---|
| committer | Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com> | 2019-02-13 09:48:40 +0200 |
| commit | a3fbfae82b4cb3ff9928e29f34c64d0507cad874 (patch) | |
| tree | ebe97b36432fb956646a9a039fc7a3fdeae456ad /drivers/char/tpm/tpm.h | |
| parent | 719b7d81f2048477f89f7303e2b4ddec8197e6e3 (diff) | |
| download | linux-stable-a3fbfae82b4cb3ff9928e29f34c64d0507cad874.tar.gz linux-stable-a3fbfae82b4cb3ff9928e29f34c64d0507cad874.tar.bz2 linux-stable-a3fbfae82b4cb3ff9928e29f34c64d0507cad874.zip | |
tpm: take TPM chip power gating out of tpm_transmit()
Call tpm_chip_start() and tpm_chip_stop() in
* tpm_chip_register()
* tpm_class_shutdown()
* tpm_del_char_device()
* tpm_pm_suspend()
* tpm_try_get_ops() and tpm_put_ops()
* tpm2_del_space()
And remove these calls from tpm_transmit(). The core reason for this
change is that in tpm_vtpm_proxy a locality change requires a virtual
TPM command (a command made up just for that driver).
The consequence of this is that this commit removes the remaining nested
calls.
Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Reviewed-by: Stefan Berger <stefanb@linux.ibm.com>
Tested-by: Stefan Berger <stefanb@linux.ibm.com>
Reviewed-by: Jerry Snitselaar <jsnitsel@redhat.com>
Reviewed-by: James Bottomley <James.Bottomley@HansenPartnership.com>
Tested-by: Alexander Steffen <Alexander.Steffen@infineon.com>
Diffstat (limited to 'drivers/char/tpm/tpm.h')
| -rw-r--r-- | drivers/char/tpm/tpm.h | 9 |
1 files changed, 0 insertions, 9 deletions
diff --git a/drivers/char/tpm/tpm.h b/drivers/char/tpm/tpm.h index 2d6d934f1c8b..53e4208759ee 100644 --- a/drivers/char/tpm/tpm.h +++ b/drivers/char/tpm/tpm.h @@ -485,15 +485,6 @@ extern const struct file_operations tpm_fops; extern const struct file_operations tpmrm_fops; extern struct idr dev_nums_idr; -/** - * enum tpm_transmit_flags - flags for tpm_transmit() - * - * %TPM_TRANSMIT_NESTED: discard setup steps (power management, locality) - */ -enum tpm_transmit_flags { - TPM_TRANSMIT_NESTED = BIT(0), -}; - ssize_t tpm_transmit(struct tpm_chip *chip, u8 *buf, size_t bufsiz, unsigned int flags); ssize_t tpm_transmit_cmd(struct tpm_chip *chip, struct tpm_buf *buf, |